KR101125858B1 - System for treating bio organic material and method for treating bio organic material using the same - Google Patents

Abstract

PURPOSE: A system for treating bio-organic materials and a method for treating the bio-organic materials using the same are provided to physically, chemically, and biologically separate water from aqueous low molecular organic materials and to collect organic materials as resources. CONSTITUTION: A system for treating bio-organic materials includes a hydrothermal decomposing unit(200) and a bio energy collecting unit. The hydrothermal decomposing unit secures the concentrations of hydrogen ions and hydroxyl ions in the water of bio-organic materials to be more than or equal to 3.0x10^-12(mol/L)^2. The cell membrane inlet of the bio-organic materials based on polymer insoluble protein is hydrothermal decomposed into low molecular water soluble organic materials based on the hydrogen ions and hydroxyl ions. The low molecular water soluble organic materials are molten by cell liquid to form cell membrane holes, and the cell liquid of the hydrothermal decomposed organic materials transfers through the holes.

Description

System for treating bio organic material and Method for treating bio organic material using the same

The present invention relates to a bio organic material processing system and a bio organic material processing method using the same, and more particularly, in the bio organic material consisting of cells trapping the cell solution into a cell membrane having a protein entrance and exit through the hydrolysis to dissolve the protein entrance and the hole in the cell membrane The present invention relates to a bio-organic material processing system using the bio-organic material as various resources such as bioenergy or fertilizer, not waste, by separating the water contained in the cell solution, and a bio-organic material processing method using the same.

Bio-organisms consist of a group of cells, which are microscopic and usually consist of a population of more than 100 million cells in 1 cc, each cell has a cell membrane containing the cell fluid, and each cell membrane contains the nutrients needed for the cell. There is a cell membrane entrance consisting of a protein that passes through the back.

Here, since the cell fluid is contained in the cell membrane, it is not dehydrated, and since the cell membrane is not easily decomposed by secreting a protective substance to the outside of the cell, the cell fluid cannot move and thus it is difficult to process bio organic materials physically, chemically, and biologically. Most of the time it is not utilized.

However, when the bio-organic material is left for a long time, the cell membrane entrance is gradually decomposed and holes are formed in the cell membrane, so that the cell fluid is released into the leachate, which causes odor and pollutes the environment.

Since the organic material obtained by removing water from the bio organic material contains more than 3500 kcal per 1 kg of dry weight, various methods such as drying, incineration and biogasification have been attempted to utilize the bio organic material as a renewable energy source. have.

However, in order to remove the water of the bio organic matter, not only heat energy is consumed more than energy recovered during drying and incineration but also many odors are generated in this process.

In addition, biogasification is a technology for making methane gas by decomposing bio organic materials using microorganisms. Bioorganization is not only blocked by the cell membrane but also releases protein enzyme as a protective substance from the cell itself, so it is not properly decomposed. It is also difficult to remove nitrogen and phosphorus contained in the effluent below the effluent limit.

In addition, in order to improve the efficiency of biogas, pretreatment techniques are used to destroy cell membranes or stop the function of cell protective substances, and to destroy microbial cell walls, heat them to a high temperature of about 120 ° C to 130 ° C, or caustic soda or lime. Promoting pyrolysis by injection improves anaerobic digestion by about 20%.

However, the conventional pretreatment processes for treating bio-organic materials only change the shape of the protein that forms the functional organic material of the cells in the bio-organic material from the cubic structure to the linear structure, suppressing its function, and making the fluid flow freely. It does not easily separate the water of bio organic matter.

Refer to the specification identification numbers [54] to [68] and the specification identification numbers [115] to [120] of Korean Patent Publication No. 10-0968764 (name of the invention: sludge heating unit, sludge heating method and sludge hydrolysis device using the same).

The problem to be solved by the present invention is to provide a bio-organic material processing system that rapidly hydrolyzes without the action of the catalyst to separate the water in the cell solution of the bio-organic material and the organic material is used as various resources such as bioenergy or fertilizer.

Another problem to be solved by the present invention is to make a hole in the cell membrane to block the movement of the cell solution by removing the protein cell membrane entrance of the bio-organic material through thermal hydrolysis, the hydrolysis of the cell fluid freely moves outside the cell membrane through the hole of the cell membrane It is to provide a method of separating organics from water by physical, chemical and biological methods using the fluidity of organics.

Another problem to be solved by the present invention is to provide a bio organic material processing system having a thermal hydrolysis device that can withstand the chlorine ions of the salt contained in the bio organic material without corrosion.

Another problem to be solved by the present invention is to provide a bio-organic material processing system that can use the polluted organic material as an energy source or fertilizer while treating the hydrothermal organic material with high pollution concentration with clean water that can be discharged to the stream. will be.

Another problem to be solved of the present invention is to develop a method that can be used as a carbon source in the denitrification process of the water treatment by making the bio-organic material hydrothermally decomposed organic matter, remove nitrogen and phosphorus by chemical reaction.

In order to achieve the above-described problem, the present invention has an ionization constant of 3.0 to determine the concentration of hydrogen ions and hydroxyl ions in water contained in a bio-organic material consisting of cells confining cell fluid to a cell membrane having a cell membrane entrance made of a polymer insoluble protein. A thermal hydrolysis device in which the hydrogen ions and the hydroxyl ions hydrothermally decompose the cell membrane entrance into a low molecular water-soluble organic material by making the concentration to be at least about 10 ⁻¹² (mol / L) ² ; In addition, the hydrophobic organic material, in which the cell fluid is freely moved to the outside of the cell membrane through the cell membrane holes formed by melting the low molecular water-soluble organic material in the cell fluid, is treated by one or more of physical, chemical, and biological methods to separate water from the organic material. Provided is a bio organic material processing system including a bio energy recovery device.

The bio organic material treatment system may further include a catalyst input unit installed at one side of the thermal hydrolysis device to input a catalyst for promoting a reaction occurring in the thermal hydrolysis device.

The thermal hydrolysis device is an organic material heating unit for heating the bio organic material to 180 ℃ ~ 250 ℃ in order to make the ionization constant is 3.0 × 10 ^-12 (mol / L) ² or more, and discharged from the organic heating unit And a heat exchange unit for exchanging high temperature thermal hydrolysis organic material and low temperature bio organic material to be thermally hydrolyzed from the outside, wherein the organic heating unit is filled with an organic material space in which the bio organic material is filled and an upper portion of the organic space. And a heating vessel forming a steam space, and a stirrer reciprocating the steam space and the organic space, wherein the steam may be supplied to the steam space to heat the bio organic material.

The thermal hydrolysis device may be made of a titanium material that can withstand the thermal hydrolysis conditions of the bio-organic material.

The bioenergy recovery device may include a solid-liquid separator separating the thermal hydrolysis organic material into a liquid organic material and a solid organic material.

In addition, the bioenergy recovery apparatus may include an anaerobic digestion tank for anaerobic digestion of the thermal hydrolysis organic material using anaerobic microorganisms to generate biogas.

In addition, the bioenergy recovery device may include a chemical reaction tank for supplying a reactant to the thermal hydrolysis organic material to remove nitrogen and phosphorus present in the thermal hydrolysis organic material by chemical bonds.

The chemical reaction tank may be an MAP reactor for forming Magnesium Ammonium Phosphate (MAP) containing nitrogen and phosphorus.

The bioenergy recovery device may further include a denitrification tank provided to remove nitrogen remaining in the thermal hydrolysis organic material.

In addition, the bioenergy recovery device may include a coagulation precipitation tank for coagulation precipitation of the thermal hydrolysis organic material to make bio coal.

In addition, the bioenergy recovery device may include a membrane separator for separating the solid organic matter from the thermal hydrolysis organic material to make bio coal.

In addition, the bioenergy recovery device may include an evaporation condenser for evaporating and condensing the thermal hydrolysis organic material to separate the distilled water and dry organic matter to make bio coal.

According to another embodiment of the present invention, the present invention provides an ionization constant of 3.0 × 10 for the concentration of hydrogen ions and hydroxyl ions in water contained in a bio-organic material consisting of cells confining cell fluid to a cell membrane having a cell membrane entrance and exit of a polymer insoluble protein. ^Making a concentration of ^-12 (mol / L) ² or more so that the hydrogen ions and the hydroxyl ions thermally decompose the cell membrane entrance into the low molecular water-soluble organic material; In addition, the hydrophobic organic material, in which the cell fluid is freely moved to the outside of the cell membrane through the cell membrane holes formed by melting the low molecular water-soluble organic material in the cell fluid, is treated by one or more of physical, chemical, and biological methods to separate water from the organic material. It provides a bio organic material treatment method comprising a bio energy recovery step.

The bio organic material treatment method may further include a catalyst input step of introducing a catalyst for promoting a thermal hydrolysis reaction while the thermal hydrolysis step is performed.

The thermal hydrolysis step is an organic material heating step of heating the bio organic material to 180 ℃ ~ 250 ℃ in order to make the ionization constant is 3.0 × 10 ^-12 (mol / L) ² or more, and the thermal hydrolysis organic material and the outside of the high temperature The heat exchange step of heat-exchanging the low-temperature bio-organic material to be supplied from the hydrothermal decomposition, wherein the organic material heating step of the heating vessel is formed with the organic space is filled with the bio organic material and the steam space is filled with water vapor in the upper portion of the organic space The method may include supplying the steam to the steam space to heat the bio organic material therein, and operating a stirrer that reciprocates the steam space and the organic space.

The bioenergy recovery step may include a solid-liquid separation step of separating the thermal hydrolysis organic material into a liquid organic material and a solid organic material.

In addition, the bioenergy recovery step may include the step of anaerobic digestion of the thermal hydrolysis organic material using anaerobic microorganisms to generate biogas.

In addition, the bioenergy recovery step may include a chemical reaction step of supplying a reactant to remove nitrogen and phosphorus present in the thermal hydrolysis organic material by chemical bonding.

The chemical reaction step may be an MAP reaction step for forming Magnesium Ammonium Phosphate (MAP) containing nitrogen and phosphorus.

The bioenergy recovery step may further include a denitrification step for removing nitrogen remaining in the thermal hydrolysis organic material.

In addition, the bioenergy recovery step may include a coagulation precipitation step of coagulation precipitation of the thermal hydrolysis organic material to make bio coal.

In addition, the bioenergy recovery step may include a membrane separation step of separating the solid organic matter from the thermal hydrolysis organic material to make bio coal.

In addition, the bioenergy recovery step may include an evaporative condensation step of separating the thermal hydrolysis organic matter by evaporation and condensation into distilled water and dry organic matter to make bio coal.

Referring to the effects of the bio organic material treatment system and the bio organic material treatment method using the same according to the present invention.

First, the bio-inorganic membrane protein gateway can be thermally decomposed into a water-soluble low-molecular organic substance without a catalyst by using a high concentration of hydrogen ions and hydroxide ions having a water ionization constant of 3.0 × 10 ^-12 (mol / L) ² or more. There is an advantage to this.

Secondly, the bio-organic material melts all the cell membrane entrances and exits in the cell solution by the hydrolysis device so that the cell membrane is converted into the thermal hydrolysis organic material in which the cell fluid moves freely, thereby utilizing the fluidity of the hydrolysis organic material physically, chemically and biologically. By separating water and recovering organic matter as a resource, the organic matter can be utilized as energy or fertilizer such as biocoal and biogas.

Third, there is an advantage in that the recovery energy can be maximized by minimizing the input energy by continuous thermal hydrolysis and heat exchange in the process of converting the bio organic material into thermal hydrolysis organic material.

Fourth, the organic material heating unit and the heat exchange unit of the thermal hydrolysis device is made of titanium, which is highly corrosion resistant to chlorine ions, so that the lifetime of the thermal hydrolysis device is extended even if the thermal hydrolysis device is used to thermally decompose bio-organic materials containing salts. There is this.

Fifth, by using a bio-energy recovery device, there is an advantage in that the hydrothermal organic material having a high pollution concentration can be treated physically, chemically, and biologically to make clean water that can be discharged to rivers.

Sixth, there is an advantage in that the carbohydrate organic material necessary for the denitrification process of the sewage treatment plant can be secured by chemically removing nitrogen and phosphorus from the thermal hydrolysis organic material obtained by hydrolyzing the bio organic material.

Seventh, there is an advantage of preventing global warming by treating the bio-organic material that promotes global warming by discharging methane gas generated while decaying into the atmosphere by using a bio energy recovery device.

1 is a graph showing the ionization constant value of water with temperature.
2 is a cell membrane structure diagram of a bio organic material
Figure 3 is a block diagram showing the configuration of a first embodiment of a bioorganic treatment system according to the present invention.
4 is a perspective view showing a hydrothermal decomposition apparatus provided in the bio organic material processing system of FIG.
Figure 5 is a perspective view showing a cut state of the organic material heating unit provided in the thermal hydrolysis device of FIG.
Figure 6 is a view showing a cross section of the organic material heating unit provided in the thermal hydrolysis device of FIG.
7 is a perspective view showing a rotating shaft and a blade provided in the organic heating unit of FIG.
8 is a block diagram showing the configuration of a second embodiment of a bioorganic treatment system according to the present invention.
9 is a block diagram showing the configuration of a third embodiment of a bioorganic treatment system according to the present invention.
10 is a block diagram showing the configuration of the fourth embodiment of the bioorganic material treatment system according to the present invention.
11 is a block diagram showing the configuration of the fifth embodiment of the bioorganic material treatment system according to the present invention.

Hereinafter, with reference to the accompanying drawings, it will be described embodiments of the bio organic material treatment system and the sewage treatment method using the same according to the present invention.

The water molecule is formed by combining one oxygen atom and two hydrogen atoms, and the bonding angle of the two hydrogen atoms is 104.5 ° instead of 180 °. As a result, the charge distribution becomes another polar particle, and the hydrogen bond is electrically connected between the oxygen atom, the neighboring molecule, and the hydrogen atom.

In water, the charge distribution changes as the electrons of the hydrogen atoms rotate, resulting in a change in the electrical bond strength, which changes the linkage between the hydrogen-bonding molecules. In this process, some of the linkages in the molecule are broken to generate hydrogen ions and hydroxyl ions. do.

As a result, all water contains some of the water molecules decomposed into hydrogen ions (H) and hydroxyl ions (OH). The concentration of hydrogen ions (H) and hydroxyl ions (OH) is constant according to temperature and pressure, and the product of the molar concentration of the ions is called the ionization constant Kw = [H] [OH] of water. Using the value, it is also shown as a graph as shown in Figure 1 or as a negative log value of the ionization constant for each temperature as shown in Table 1.

Temperature (℃) 0 25 50 75 100 150 200 250 300 -lg (Kw) 14.95 13.99 13.26 12.70 12.25 11.64 11.31 11.20 11.34

The ionization constant of water is an equilibrium constant that changes with temperature and pressure.The ionization constant of water is 1.02 × 10 ^-14 at room temperature (25 ℃) under the pressure of 1 atm below 100 ℃ and steam pressure above 100 ℃. mol / L) ² but rapidly rises with increasing temperature, 4.90 × 10 ^-12 (mol / L) ² at 200 ℃, 478 times higher than room temperature, and 6.31 × 10 ^-12 (mol / L) at 250 ℃ ² , 616 times higher than room temperature, and 4.57 × 10 ^-12 (mol / L) ² increases at 446 times higher than room temperature at 300 ℃. It reaches maximum at 250 ℃ ~ 300 ℃ and decreases rapidly when it exceeds 350 ℃.

The value of the ionization constant is more hydrothermally decomposed at high pressure at the same temperature because the concentration of hydrogen ions and hydroxyl ions of the water increases as the pressure acting as a value in the conditions under which the vapor pressure acts.

Pyrolysis is a chemical reaction that combines hydrogen ions and hydroxyl ions of water to macromolecule-insoluble nutrient organics such as proteins or starch, thereby cutting the polymer rings and converting them into water-soluble low-molecular amino acids or organic acids.

At room temperature, the concentrations of hydrogen ions and hydroxy ions are low, but the hydrolysis of proteins is slow due to enzyme catalysis. A representative catalyst is digestive enzyme. However, when the concentration of hydrogen ions and hydroxy ions increases and the ionization constant becomes higher than 3.0 × 10 ^-12 (mol / L) ² , protein hydrolysis occurs rapidly without a catalyst. At this time, the negative logarithm of the ionization constant becomes 11.52.

When the temperature of bio-organic substance is heated to 180 ℃ ~ 250 ℃ by applying pressure above vapor pressure, the ion concentration of water of bio-organic substance becomes ionization constant of 3.0 × 10 ^-12 (mol / L) ² or more, Thermal hydrolysis without catalyst

In addition, the ionization constant is formed to be 3.0 × 10 ^-12 (mol / L) ² or more even at water temperature and pressure of 75 ℃ 5000, 100 ℃ 2600 and 150 ℃ 250. Thermal hydrolysis takes place.

The protein hydrolysis condition of the bio organic matter does not depend only on the temperature but also varies depending on the pressure and thus has a direct correlation with the ion concentration. The hydrolysis can be managed accurately.

Here, the bio organic material is an organic material composed of cells, and raw materials of various organic products, forest products, seaweeds, photosynthesis, algae, animal organic materials such as bacteria, microorganisms, livestock products, and aquatic products that grow and eat the vegetable organic materials, and the organic and animal organic materials. This includes all foods made from food, processed foods, and waste from these processes, as well as manure and sewage sludge.

These bioorganisms are composed of cells and the cell fluid is protected by the cell membrane and is not dehydrated. The cell membrane 10 of the bioorganism is composed of a phospholipid bilayer and a protein membrane entrance 11 of a protein. FIG. 2 is a cell membrane structure diagram of the bioorganism observed by an electron microscope.

When the concentration of hydrogen ions and hydroxy ions in the water of the bio-organic cell fluid becomes more than the ionization constant of 3.0 × 10 ^-12 (mol / L) ² , the cell membrane entrance (11) made of protein is thermally hydrolyzed without a catalyst so that the water-soluble low molecules Turn into organics

That is, the hydrolysis of hydrogen ions (H +) and hydroxyl ions (OH-) cleaves the covalent bond of the protein, so that the protein is decomposed into water-soluble low-molecular organic substances such as amino acids. Many holes are formed in the cell membrane of the bio-organic material that melts, and the cell fluid freely moves away from the cell membrane, thereby transforming into a highly hydrothermal organic compound.

Referring to FIG. 3, the bio-organic material processing system according to the present invention includes one of a thermal hydrolysis apparatus 200 for converting a cell membrane protein of a bio-organic material into thermal hydrolysis organic material and a physical, chemical, and biological method. Bio-energy recovery device for treatment by the method of.

The thermal hydrolysis device 200 has a ionization constant of 3.0 × 10 ^-12 (mol /) of a concentration of hydrogen ions and hydroxide ions in water contained in a bio-organic material consisting of cells confining cell fluids to a cell membrane including an entrance and exit of a polymer insoluble protein. L) The hydrogen ions and the hydroxyl ions are thermally decomposed into the low molecular water-soluble organic material by making the concentration to be ² or more.

The ionization constant of water varies with temperature and pressure, and the temperature of the ionization constant reaches 3.0 × 10 ^-12 (mol / L) ² when the steam pressure is maintained to maintain the liquid state even at high temperatures and maintains 180 ℃ to 250 ℃. The concentrations of hydrogen and hydroxide ions required for decomposition are ensured.

At this time, the thermal hydrolysis device 200 is a titanium material that can ensure the corrosion resistance to the chloride chlorine of the salt contained in the cell solution of the bio-organic material in the state of high hydrogen ions and hydroxyl ions in which the bio-organic material is hydrolyzed It can be produced as.

Titanium forms a titanium dioxide (Ti0 ₂ ) protective film that is stable in various corrosive environments, and particularly has good corrosion resistance in seawater and a solution containing chlorine ions. Table 2 shows the corrosiveness of various metal materials in seawater and shows that the titanium forms a good protective film in seawater and has high corrosion resistance.

Corrosion Rate of Various Metals in Seawater Seawater flow rate 1 ft / sec. 4 ft / sec. 27 ft / sec. Carbon steel 34 72 254 Cast iron 45 - 270 Silicon bronze One 2 343 Admiralty Brass 2 20 170 Hydraulic bronze 4 One 339 G bronze 7 2 280 Al-bronze (10% al) 5 - 236 Aluminum brass 2 - 105 90-10Cu Ni (0.8% Fe) 5 - 99 70-30Cu Ni (0.05% Fe) 2 - 199 70-30Cu Ni (0.5% Fe) <1 <1 39 Monel <1 <1 4 316 SS One 0 <1 Hastealloy C <1 - 3 Titanium 0 - 0

(Unit: milligrams corroded in 0.01 m2 for 1 day)

Carbon steel, for example, has 34 milligrams of corrosion per day at 0.01 square meters when the seawater flow rate is 34 ft / sec, but titanium does not corrode.

The thermal hydrolyzate is a black liquid that does not smell bad and has very good fluidity. However, since the thermal hydrolysis organic material contains a large amount of organic material, nitrogen, phosphorus, etc., when the thermal hydrolysis organic material is discharged into the river as it is, serious water pollution is generated, so it must be treated and discharged into clean water.

Effluent acceptance criteria for public sewage treatment plants are 40 ppm of chemical oxygen demand (COD), 10 ppm of suspended solids (SS), 10 ppm of total nitrogen (TN), and 2 ppm of total phosphorus (TP). Level. Table 3 shows the results of the component analysis of the liquid organic material hydrothermally decomposed and solid-liquid separated sewage sludge, which is a bio organic material, and shows how high concentrations of nitrogen, phosphorus and pollutants are compared to the effluent standard.

Physical and Chemical Properties of Pyrolysis Organics Item  range Average pH 4.85 5.16 4.97 Alkalinity (mg / L as CaCO3) 1,572-1,786 1,679 TCOD (mg / L) 66,600-75,066 68,067 SCOD (mg / L) 41,400-47,800 44,600 TSS (mg / L) 27,980-28,240 28,120 VSS (mg / L) 19,060-19,160 19,080 T-N (mg / L) 6,041-6,128 6,085 NH3-N (mg / L) 2,488-2,986 2,490 NO3-N (mg / L) 74-82 82 T-P (mg / L) 1,173-1454 1,214 PO4-P (mg / L) 7722-1195 913 Volatile Fatty Acids (mg / L as C2) 960-1832 1471

Here, TSS means Total Suspended Solids, VSS means Volatile Suspended Solids, TCOD is Total Chemical Oxygen Demand, and SCOD is Soluble Chemical Oxygen Demand. PO4-P means phosphate, NH3-N means ammonia nitrogen, and NO3-N means nitrate nitrogen.

On the other hand, the energy recovery device is treated by one or more of physical, chemical and biological methods of the thermal hydrolysis organic material in which the cell fluid is freely moved to the outside of the cell membrane through a cell membrane hole formed by melting the low molecular water-soluble organic material in the cell fluid. And organics are separated.

As the physical method, precipitation using a difference in specific gravity, membrane separation using a difference in particle size, and evaporation through heat transfer may be used.

As the chemical method, an agglomeration reaction for changing the electrical properties of particles by adding a chemical, a chemical reaction for chemically combining nitrogen and phosphorus by adding a reactant, and the like may be used.

The biological method may be a method of eating or decomposing organic matter using microorganisms. In addition, a bioreactor may further be configured to remove nitrogen or phosphorus using the microorganism.

Specifically, the bioenergy recovery device may include a solid-liquid separator 300 for separating the thermal hydrolysis organic matter into a liquid organic matter and a solid organic matter. The bio organic material has a protein ionization constant of 3 × 10 ^-12 (mol / L) ² or more, and the protein forming the entrance to the cell membrane is thermally decomposed into the aqueous solution, but the phospholipids forming the cell membrane remain solid because they are not hydrolyzed. It can be easily separated to recover bioenergy.

In addition, the bioenergy recovery device may include an anaerobic digestion tank 400 for anaerobic digestion of the thermal hydrolysis organic material using anaerobic microorganisms to generate biogas. The anaerobic digestion tank 400 corresponds to an apparatus for decomposing the bio organic matter into biogas such as methane gas by anaerobic microorganisms that do not like oxygen.

In general, anaerobic digestion of bio organic materials such as food waste, livestock manure, and sewage sludge consists of medium-temperature digestion at around 37 ° C and high-temperature digestion at around 55 ° C. acidogenesis, and methanogenesis, a three-step reaction that takes between 20 and 60 days.

In the anaerobic digester, hydrolysis is carried out by catalysis of protein enzymes released by microorganisms even at low concentrations of hydrogen ions and hydroxyl ions.

However, in this case, since the hydrothermal decomposition of the bioorganic material is 100% completed under the conditions of ionization constant of 3 × 10 ^-12 (mol / L) ² or more, the hydrothermal decomposition which takes the most time in anaerobic digestion is omitted. This can cut the time of anaerobic digestion in half.

The bioenergy recovery device may further include a chemical reaction tank for supplying a reactant to the thermal hydrolysis organic material to remove nitrogen and phosphorus present in the thermal hydrolysis organic material by chemical bonding. The chemical reaction tank may be provided as an MAP reactor 500 for forming Magnesium Ammonium Phosphate (MAP) containing nitrogen and phosphorus.

Hereinafter, when the bioenergy recovery apparatus includes the solid-liquid separator 300, the anaerobic digestion tank 400, and the MAP reaction tank 500, the transfer process of the thermal hydrolysis organic material will be described below.

First, when the bio organic material is introduced into the thermal hydrolysis device 200 via the sludge storage tank 100, the bio organic material is converted into a thermal hydrolysis organic material.

Thereafter, the thermal hydrolysis organic material is separated into a solid organic matter and a liquid organic matter via the solid-liquid separator 300. The solid organic matter is used to make bio coal after being moved to the solid organic hopper 310, the liquid organic matter is introduced into the anaerobic digestion tank (400).

The liquid organic matter introduced into the anaerobic digestion tank 400 is discharged biogas through the gas tank 410 while undergoing anaerobic digestion. In addition, the digestive waste liquid undergoing anaerobic digestion is purified by microorganisms after being transferred to the separation tank 700. Microorganisms propagated while eating contaminants are precipitated and separated in the separation tank 700, and clean water is discharged to the stream.

The liquid organic matter passing through the anaerobic digestion tank 400 is introduced into the MAP reaction tank 500. Since the liquid organic substance contains a large amount of ammonia nitrogen component and phosphoric acid component, when a reactant such as magnesium ions is introduced into the MAP reactor 500, phosphate ions, ammonium ions and magnesium The ions react one by one to form MAP, and in the alkali region, MAP crystals are formed.

Of course, the MAP reactor 500 is not provided separately, and a process for generating an MAP may be performed in the anaerobic digestion tank 400. The MAP reaction tank 500 may be installed before the solid-liquid separator 300 to remove the MAP crystals in the solid-liquid separation process.

Meanwhile, the present invention is not limited to the above-described embodiment, and the bioenergy recovery device may further include a denitrification tank 600 provided to remove nitrogen remaining in the thermal hydrolysis organic material.

In the denitrification tank 600, denitrification bacteria decomposes nitrate ions or nitrite ions, which are nitrogen-containing contaminants, using carbon as an energy source, and converts them into harmless nitrogen gas.

The present invention is not limited to the above-described embodiment, the bio-organic material processing system is installed on one side of the thermal hydrolysis device 200, a catalyst for introducing a catalyst for promoting the reaction occurring in the thermal hydrolysis device 200 It may further include an input unit (not shown).

As the catalyst, organic acids such as hydrochloric acid, ammonia, alkali metal hydroxides, alkaline earth metal hydroxides, oxal acetic acid, citric acid, succinic acid, fumaric acid and matric acid, and metal salts may be used.

4 to 7, the thermal hydrolysis apparatus according to the present invention will be described.

When the temperature of the bio organic material is heated to 180 ° C. to 250 ° C. such that the ionization constant of the bio organic material is 3 × 10 ⁻¹² (mol / L) ² or more, the protein forming the entrance and exit of the cell membrane of the bio organic material is hydrolyzed. Pressure above the vapor pressure corresponding to the heating temperature is applied to maintain the liquid in the water. In the heating temperature range of 250 ℃ ~ 300 ℃ to secure the ion concentration required for thermal hydrolysis, but the heating energy is required a lot compared to the heating effect is the same as the heating temperature for the thermal hydrolysis according to the present invention is 180 ℃ ~ 250 ℃ is preferred.

The thermal hydrolysis apparatus 200 according to the present embodiment is a device for converting bioorganic matter into thermal hydrolysis organic material by thermally decomposing the entrance protein of the cell membrane of the bio organic material.

The thermal hydrolysis device 200 includes a boiler unit 240, an organic material heating unit 210, an organic material heat exchange unit 250, a sealed unit 220, an organic material injection unit 260, and a discharge unit 270. do.

The boiler unit 240 includes a boiler body 241 and a steam supply pipe 243 for supplying steam generated in the boiler body 241 to the organic material heating unit 210.

In addition, the organic material heating unit 210 by heating the bio organic material to 180 ℃ ~ 250 ℃ using water vapor supplied from the steam supply pipe (243) 3 × 10 ^-12 (mol / L) ^{Make it 2} or more.

The organic material heating unit 210 may include a heating container 211 forming an organic space in which the bio organic material is filled and a steam space in which the steam is filled so as to contact the bio organic material at an upper portion of the bio organic material, and the steam space; A stirrer for stirring the water vapor and the bio organic material while reciprocating the organic material space alternately, and a discharge container 217 through which the thermal hydrolysis organic material is discharged.

Specifically, when the stirrer mixes the water vapor and the bio organic material with each other while reciprocating the water vapor space and the organic space, the contact of the water vapor and the bio organic material is promoted, and the bio organic material is continuously heated at a high speed.

A large amount of water vapor is continuously supplied through the steam space rapidly, and the steam mixing heating is fast, so that the bio organic material injected into the heating vessel 211 is required to undergo hydrothermal decomposition during the time of moving the heating section. It can be heated quickly.

The stirrer includes a rotating shaft 213 installed through the heating vessel 211 and a cylindrical blade 215 coupled to the rotating shaft 213.

The discharge vessel 217 is installed to communicate with the heating vessel 211 at one end of the heating vessel 211. A partition 219 is formed between the heating vessel 211 and the discharge vessel 217. Since the thermal hydrolysis organic material overflows over the partition wall 219 and moves from the heating container 211 to the discharge container 217, the organic material space and the water vapor space are naturally formed by the partition wall 219.

In addition, the thermal hydrolysis organic material discharged from the discharge container 217 is cooled while passing through the organic material heat exchange unit 250, and is discharged to the outside through the discharge unit 270.

On the other hand, the organic material heat exchange unit 250 heat-exchanges the high-temperature thermal hydrolysis organic material discharged from the organic material heating unit 210 and the low-temperature organic material to be hydrothermally supplied from the outside.

Referring to FIG. 8, a second embodiment of the bioorganic material treatment system according to the present invention will be described. Detailed description of the same configuration as the above-described first embodiment among the components constituting the present embodiment will be omitted.

This embodiment is different from the first embodiment described above, the MAP (MAP) reaction tank 500 is installed after the thermal hydrolysis device 200, that is, between the thermal hydrolysis device 200 and the solid-liquid separator 300 The liquid organic matter passing through the MAP reaction tank 500 is introduced into the carbohydrate supply source of the denitrification tank 600 for treating the digestive waste liquid of the anaerobic digestion tank.

Accordingly, the thermal hydrolysis organic material via the thermal hydrolysis apparatus 200 is chemically reacted in the MAP reactor 500, that is, the MAP reaction in which magnesium ions, ammonia and phosphoric acid combine to form crystals. After nitrogen and phosphorus are removed from the thermal hydrolysis organic material, it is introduced into the solid-liquid separator 300.

Organic matter for making biogas, including the liquid organic matter separated from the solid-liquid separator 300 is introduced into the anaerobic digestion tank (400).

Since the liquid organic matter passing through the anaerobic digestion tank 400 is a state of the digestive waste liquid from which carbohydrate components are removed while methane gas is generated, the liquid organic matter has an excessive nitrogen content. The liquid organic matter is introduced into the denitrification tank 600 in order to remove nitrogen contained in the liquid organic matter passed through the anaerobic digestion tank.

At the same time, a portion of the liquid organic matter, that is, the liquid organic matter which does not flow into the anaerobic digestion tank 400 via the solid-liquid separator 300, flows into the denitrification tank 600.

As a result, the liquid organic substance which nitrogen and phosphorus are chemically removed from the thermal hydrolyzed organic substance can be used as a carbohydrate organic substance necessary for the denitrification process.

Referring to FIG. 9, a third embodiment of the bioorganic material treatment system according to the present invention will be described.

The bioenergy recovery device according to the present embodiment includes a coagulation sedimentation tank 800 for chemically coagulating the pyrolysis organic material hydrolyzed in the heat hydrolysis device 200 to make bio coal, and the coagulation sedimentation tank 800 via the coagulation sedimentation tank 800. Solid-liquid separator 300 for separating the thermal hydrolysis organic matter into a solid organic matter and a liquid organic matter. In this embodiment, the anaerobic digestion tank, MAP reaction tank, denitrification tank and separation tank in the second embodiment described above are omitted.

As a result, the thermal hydrolysis organic material hydrolyzed by the thermal hydrolysis device is introduced into the coagulation sedimentation tank 800. The precipitate precipitated in the coagulation sedimentation tank 800 is introduced into the solid-liquid separator 300, and the supernatant of the coagulation sedimentation tank 800 is moved to the sewage treatment tank 10 and finally discharged to the stream.

The solid organic matter separated from the solid-liquid separator 300 is used as biocoal, and the liquid organic matter is returned to the coagulation sedimentation tank 800 to repeat coagulation precipitation.

Here, since the cell fluid freely moves within the thermal hydrolysis organic material, a chemical reaction is also quickly performed, and when the polymer flocculant is administered, the pollutant is aggregated and precipitated.

Referring to FIG. 10, a fourth embodiment of a bioorganic material treatment system according to the present invention will be described.

The bio organic matter treatment system according to the present embodiment has a configuration similar to that of the third embodiment described above. However, unlike the above-described third embodiment, the bioenergy recovery device according to the present embodiment is a membrane separator 900 for separating the thermal hydrolysis organic material hydrolyzed by the thermal hydrolysis device into a solid organic matter and a liquid organic matter to make biocoal. It includes.

As a result, the thermal hydrolysis organic material hydrolyzed in the thermal hydrolysis device is introduced into the membrane separator 900 to be separated into the final reflux water and the solid organic matter. The solid organic matter is used as biocoal, and the final return water is transferred to the sewage treatment tank 10 and finally discharged to the stream.

The membrane separator 900 includes a separator having fine pores. The membrane separator 900 passes through the membrane and is separated into final countercurrent water, and the membrane separator 900 does not pass through the membrane, and is separated into a solid organic material.

Referring to FIG. 11, a fifth embodiment of the bioorganic material treatment system according to the present invention will be described.

The bio organic matter processing system according to the present embodiment has a configuration similar to that of the third embodiment described above. However, unlike the third embodiment described above, the bioenergy recovery device according to the present embodiment includes an evaporative condenser 1000 for evaporating and condensing thermal hydrolysis organic matter to distilled water and dry organic matter to make biocoal.

As a result, the thermal hydrolysis organic material hydrolyzed by the thermal hydrolysis apparatus 200 is introduced into the evaporative condenser 1000 and separated into distilled water and dry organic matter. The dry organic matter is used as biocoal, and the distilled water becomes final reflux water and is transferred to the sewage treatment tank 10 and finally discharged to a stream.

The evaporative condenser 1000 separates the thermal hydrolyzed organic material into the distilled water and the dried organic material by heating the thermal hydrolyzed organic material to evaporate it into water vapor and condensing the steam again.

As described above, the present invention is not limited to the above-described specific preferred embodiments, and various modifications may be made by those skilled in the art without departing from the gist of the present invention as claimed in the claims. It is possible and such variations are within the scope of the present invention.

100: sludge storage tank 200: thermal hydrolysis device
210: organic material heating unit 211: heating vessel
213: axis of rotation 215: blade
217: discharge container 220: sealed unit
221: distilled water supply container 225: sealed block
240: boiler unit 250: organic matter heat exchange unit
300: solid-liquid separator 400: anaerobic digester
500: MAP reactor 600: denitrification tank
700: separation tank 800: coagulation sedimentation tank
900: membrane separator 1000: evaporative condenser

Claims (23)

The concentration of hydrogen ions and hydroxide ions in water contained in a bio-organic material consisting of cells confining cell fluid to a cell membrane having a cell membrane entrance made of a polymer insoluble protein, and the ionization constant is 3.0 × 10 ^-12 (mol / L) ² or more. A thermal hydrolysis device in which the hydrogen ions and the hydroxyl ions thermally decompose the cell membrane entrance into a low molecular water-soluble organic substance; And,
Bio-energy which separates water and organics by treating thermal hydrolysis organic material in which the cell fluid freely moves to the outside of the cell membrane through at least one of physical, chemical and biological methods through the cell membrane hole formed by melting the low molecular water-soluble organic material in the cell fluid. Bio organic material processing system comprising a recovery device. The method of claim 1,
And a catalyst input unit installed at one side of the thermal hydrolysis device to input a catalyst for promoting a thermal hydrolysis reaction occurring in the thermal hydrolysis device. The method of claim 1,
The thermal hydrolysis device is an organic material heating unit for heating the bio organic material to 180 ℃ ~ 250 ℃ in order to make the ionization constant is 3.0 × 10 ^-12 (mol / L) ² or more, and discharged from the organic heating unit It includes a heat exchange unit for heat-exchanging the high temperature thermal hydrolysis organic material and the low temperature bio-organic material to be hydrothermally supplied from the outside,
The organic heating unit includes a heating vessel for forming an organic space in which the bio organic material is filled and a steam space in which steam is filled in an upper portion of the organic space, and a stirrer reciprocating the steam space and the organic space. Is supplied to the water vapor space to heat the bio organics. The method of claim 1,
The thermal hydrolysis device is a bio-organic material processing system, characterized in that made of titanium material that can withstand the thermal hydrolysis conditions of the bio-organic material. 5. The method according to any one of claims 1 to 4,
The bio-energy recovery apparatus comprises a solid-liquid separator for separating the thermal hydrolysis organic matter into a liquid organic matter and a solid organic matter. 5. The method according to any one of claims 1 to 4,
The bioenergy recovery apparatus includes an anaerobic digestion tank for anaerobic digestion of the thermal hydrolysis organic material using anaerobic microorganisms to generate biogas. 5. The method according to any one of claims 1 to 4,
The bio-energy recovery apparatus includes a chemical reaction tank for supplying a reactant to the thermal hydrolysis organic material to remove nitrogen and phosphorus present in the thermal hydrolysis organic material by chemical bonds. The method of claim 7, wherein
The chemical reaction tank is a bio organic matter treatment system, characterized in that the MAP (MAP) reaction tank for forming the Magnesium Ammonium Phosphate (MAP) containing the nitrogen and phosphorus. The method of claim 7, wherein
The bio-energy recovery device further comprises a denitrification tank provided to remove nitrogen remaining in the thermal hydrolysis organic material. 5. The method according to any one of claims 1 to 4,
The bio-energy recovery apparatus includes a coagulation settling tank for coagulating and precipitating the thermal hydrolysis organic material to make bio coal. 5. The method according to any one of claims 1 to 4,
The bioenergy recovery device comprises a membrane separator for separating solid organics from the thermal hydrolysis organics to make bio coal. 5. The method according to any one of claims 1 to 4,
The bio-energy recovery system comprises an evaporative condenser for evaporating and condensing the thermal hydrolysis organics to make distilled water and dry organic matter to make bio-coal. The concentration of hydrogen ions and hydroxide ions in water contained in a bio-organic material consisting of cells confining cell fluid to a cell membrane having a cell membrane entrance made of a polymer insoluble protein, and the ionization constant is 3.0 × 10 ^-12 (mol / L) ² or more. A thermal hydrolysis step in which the hydrogen ions and the hydroxyl ions hydrolyze the cell membrane entrance into a low molecular water-soluble organic material; And,
Bio-energy which separates water and organics by treating thermal hydrolysis organic material in which the cell fluid freely moves to the outside of the cell membrane through at least one of physical, chemical and biological methods through the cell membrane hole formed by melting the low molecular water-soluble organic material in the cell fluid. Bio organic material treatment method comprising a recovery step. The method of claim 13,
And a catalyst input step of introducing a catalyst for promoting a thermal hydrolysis reaction while the thermal hydrolysis step is performed. The method of claim 13,
The thermal hydrolysis step is an organic material heating step of heating the bio organic material to 180 ℃ ~ 250 ℃ in order to make the ionization constant is 3.0 × 10 ^-12 (mol / L) ² or more, and the thermal hydrolysis organic material and the outside of the high temperature A heat exchange step of heat-exchanging the low temperature bio organic material to be hydrolyzed supplied from
The organic material heating step includes supplying the water vapor to the steam space to heat the bio organic material into a heating container in which an organic material space filled with the bio organic material and a steam space filled with steam on the upper portion of the organic material space are formed. And operating a stirrer reciprocating the steam space and the organic space. The method according to any one of claims 13 to 15,
The bioenergy recovery step comprises a solid-liquid separation step of separating the thermal hydrolysis organic matter into a liquid organic matter and a solid organic matter. The method according to any one of claims 13 to 15,
The bioenergy recovery step includes the step of anaerobic digesting the thermal hydrolysis organic material using anaerobic microorganisms to generate biogas. The method according to any one of claims 13 to 15,
The bioenergy recovery step includes a chemical reaction step of supplying a reactant to remove nitrogen and phosphorus present in the thermal hydrolysis organic material by chemical bonds. The method of claim 18,
The chemical reaction step is a bio-organic material treatment method characterized in that the MAP (MAP) reaction step for forming Magnesium Ammonium Phosphate (MAP) containing nitrogen and phosphorus. The method of claim 18,
The bioenergy recovery step further includes a denitrification step for removing nitrogen remaining in the thermal hydrolysis organic material. The method according to any one of claims 13 to 15,
The bioenergy recovery step comprises a coagulation precipitation step of coagulation precipitation of the thermal hydrolysis organic material to make bio coal. The method according to any one of claims 13 to 15,
The bioenergy recovery step comprises a membrane separation step of separating the solid organic matter from the thermal hydrolysis organic matter to make bio coal. The method according to any one of claims 13 to 15,
The bio-energy recovery step comprises an evaporation condensation step of separating the thermal hydrolysis organic matter by evaporation and condensation into distilled water and dry organic matter to make bio-coal.

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